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In the coal-water slurry gasifier, the installation of refractory bricks in the furnace is a key technology, especially around the nozzles with complex structures and large curvature changes and the arched parts of the furnace top. Poor installation of refractory bricks may lead to the occurrence of high temperature blow-by, if ordinary block refractory bricks are used. It is very difficult to drag the 9 warehouses up. Therefore, in order to better prevent the problem of high temperature blow-by, the author designed several special-shaped refractory bricks, which are mainly used for installation around the nozzle. The special-shaped refractory "々 can not only bring convenience to the construction but also effectively prevent the problem of high temperature blow-by gas. The main idea is to ensure that the whole refractory brick is used around the nozzle and the arched part of the furnace top. It reduces the difficulty of construction and eliminates the use of block The gaps that may occur due to construction difficulties when forming refractory bricks.
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